Modelling the response of fresh groundwater to climate and vegetation changes in coral islands

Modelling the response of fresh groundwater to climate and vegetation changes in coral islands
复制标题

模拟珊瑚岛地下水对气候和植被变化的响应

DOI:
10.1007/s10040-014-1160-y
复制
发表时间:
2014
影响因子:
2.8
通讯作者:
Comte J
Comte J
中科院分区:
地球科学3区
文献类型:
--
作者:
Comte J

文献摘要

参考文献

被引文献

相似文献

在珊瑚岛,地下水是陆地生命(包括人类供水)的重要淡水资源。淡水透镜预期的气候变化和随后的植被改变的反应是量化的Grande Glorieuse,一个低洼的珊瑚岛在西印度洋。将分布式补给模型、蒸散模型和咸水植物毒性模型集成到变密度地下水模型中,模拟地下水盐度的演变。模型的结果进行评估,对实地观察,包括地下水和地球物理测量。模拟显示,目前施加的主要控制植被方面的透镜形态和高灵敏度的透镜气候变化,影响数量和盐度。平均海平面和气候条件(降雨和蒸散)的长期变化预计将导致盐度平均增加近140%(+ 8 kg m− 3)。在植被密度高的低洼地区,这些变化最高为+300%(+10 kg m− 3)。然而,由于盐度的增加及其植物毒性,它表明,在植被活动的必然下降可以缓冲淡水的改变。这说明了核算植被动态对研究珊瑚岛地下水的重要性。
In coral islands, groundwater is a crucial freshwater resource for terrestrial life, including human water supply. Response of the freshwater lens to expected climate changes and subsequent vegetation alterations is quantified for Grande Glorieuse, a lowlying coral island in the Western Indian Ocean. Distributed models of recharge, evapotranspiration and saltwater phytotoxicity are integrated into a variabledensity groundwater model to simulate the evolution of groundwater salinity. Model results are assessed against field observations including groundwater and geophysical measurements. Simulations show the major control currently exerted by the vegetation with regards to the lens morphology and the high sensitivity of the lens to climate alterations, impacting both quantity and salinity. Long-term changes in mean sea level and climatic conditions (rainfall and evapotranspiration) are predicted to be responsible for an average increase in salinity approaching 140%(+ 8 kg m− 3) when combined. In low-lying areas with high vegetation density, these changes top+ 300%(+ 10 kg m− 3). However, due to salinity increase and its phytotoxicity, it is shown that a corollary drop in vegetation activity can buffer the alteration of fresh groundwater. This illustrates the importance of accounting for vegetation dynamics to study groundwater in coral islands.
通过数值模型应用对小岛屿的水平衡组成进行建模
DOI: --
发表时间: 2010
期刊:
影响因子: --
作者:
S. Praveena;M. H. Abdullah;K. Bidin;A. Aris
通讯作者: A. Aris
自上次间冰期以来的构造稳定性使格洛里厄斯群岛与附近的科摩罗群岛相抵消
DOI: --
发表时间: 2013
期刊: Coral reefs
影响因子: 3.5
作者:
M. Guillaume;J. Reyss;P. Pirazzoli;J. H. Bruggemann
通讯作者: J. H. Bruggemann
冲积沿海低地平原的盐化过程和海平面上升的影响
DOI: --
发表时间: 2006
期刊:
影响因子: --
作者:
N. Don;N. Hang;H. Araki;H. Yamanishi;K. Koga
通讯作者: K. Koga
气候变化导致盐水入侵拉克迪夫岛含水层的数值模拟
DOI: --
发表时间: 2000
期刊:
影响因子: --
作者:
A. Bobba;V. Singh;R. Berndtsson;L. Bengtsson
通讯作者: L. Bengtsson
环礁岛水文地质学:潮汐控制系统中的流量和淡水出现
DOI: --
发表时间: 1990
期刊:
影响因子: --
作者:
J. Oberdorfer;P. Hogan;R. Buddemeier
通讯作者: R. Buddemeier